CVE-2021-34193

HIGH EPSS 62.7%
Published Aug 22, 20232y ago · Modified Jun 17, 20261w ago
7.5 CVSS 3.1
High
Find Similar
Published Aug 22, 2023 2y ago
Last Modified Jun 17, 2026 1w ago

Description

Stack overflow vulnerability in OpenSC smart card middleware before 0.23 via crafted responses to APDUs.

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
62.7% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-787 Out-of-bounds Write Memory Safety

Affected Products 1

VendorProductVersionRange
opensc_projectopensc* <0.22.0

References 13

  • bugs.chromium.org https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=27719
    Issue TrackingMailing List
  • bugs.chromium.org https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28185
    Issue TrackingMailing List
  • bugs.chromium.org https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28383
    Issue TrackingMailing List
  • bugs.chromium.org https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28768
    Issue TrackingMailing List
  • bugs.chromium.org https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28843
    Issue TrackingMailing List
  • bugs.chromium.org https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28855
    Issue TrackingMailing List
  • bugs.chromium.org https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=29912
    Issue TrackingMailing List
  • bugs.chromium.org https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=30112
    Issue TrackingMailing List
  • bugs.chromium.org https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=30800
    Issue TrackingMailing List
  • bugs.chromium.org https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31448
    Issue TrackingMailing List
  • bugs.chromium.org https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31540
    Issue TrackingMailing List
  • bugs.chromium.org https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=32149
    Issue TrackingMailing List
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2024/12/msg00026.html

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.